Pneumatic cleaning apparatus.



L. BLZIMMER. PNEUMATIC CLEANING APPARATUS. APPLICATION FILED JUNE 17, 19021. RENEWED JAN. 26, 1911.

Patented Mar. 7, 1911.

2 SHEETS-SHEET 1.

$4441 c/wtoz,

army;

I vi UI L comm I the'inrention h no means limited to the 'iugn and the like. and the primary object purpc room or place to place, and occupies but very purpose of emptying.ii-untl cleaning it. said ing friuue. designated as a whole, by the refbracket 1 1 has at its upper end op ositclg;

UNITED STATES. PAETELNT OFFICE.

ERHEST B. ZIMMER, 0F MINNEAPOLIS, MINNESOTA, ASSIGNOR TO ZIMMER VACUUM RENOVATOR (20., OF IIIINNEAIOLIS, MINNESOTA.

' PNEUMATIC CLEANING APPARATUS.

To all whom "it may concern.

Be it known that I, Ens-nor L. 13. Zmnnn, a. citizen of the United States, residing at Minneapolis, in the county of Heunepin and State of Minnesota, have iurcntecl a new :mr'i useful Pneumatic Cleaning Apparatus. of which the following is a specificuthzn.

The. present-"im'ention relates to mean: to cleaning carpets, rugs, draperies, furn' to proridc a novel am] simple nnic'hinc that is entire} pi'nrt'icnblefor household or other can he easily moved from room to a little space, while lniriug a very powerful suction. .nntl consequently a thoroughly effective cleansing action.

" further flIHl important object is to probe readily reiutwed and Lllfillltfllllltl'llil for the menus eticctirely separating the dust from the air PWHHl through the apparatus.

The preferred eulhmliinent of the invention 'isi'llustruietl in. the uccon'ipamyii lspeetion of thecluimshereto n'ppentietl that exact structure disclosed. V

In the tllfl \\'ir. l $i:-ligure 1 is a rear cleration of the nzflchine. Fig. 2 is u side clerzuion of the some. ""1. 3 a vertical 5-:1' o1 .laig. 1.. Fig. is a horizontal sectional rieufltlirimgh the structure. 5 Fig. 5 is a plan viewof one of the pump ho iics.".

'glll'llltll reference. numerals rlesignutc corresponding aris in all the figures of the drawings;

In the en'lhodimentillustrated, a supporterence numeral 10,is employed, that is prorulerl with legs 11 mounted on hall casters pair of front upstanding brackets 15 that are suitably secured to the platform. The

outstanding arms 16, to which are astencd horizontally disposal chambered pump bodies 1?. the upper sides of these bodies being concaved to form the chambera Said l i l I 1 lvule llllSlout. in-t. collecting means that can I Patented Mar. 7, 1911.

Serial No. 604,876.

borlies have outstanding peripheral flainges 18, to which are clamped b3, means ofrings 19 and colts 20, the margins of flexible diuphrugnb 21 formed of leather or other suit able material. A walking beam 22, fulicrumcrl between ito ends, as shown at 23 111mm 1hr lrl'uehet l4. has oppositely extendmg can-roll arms pivoted EIQ'FllOWH :11; 26

to clumping washers 27 secured on opposite .t'le; ui' the control portions of the dia ihruc ms 2t. 'ihis walking beam has a clepenrhw iu ging urn: 28, which as. illOWIl more pantieulmrly in Fig. 3. is providcdnvith :1. longitudinally llSiJOFCCl slot; 29. p 1

A motor 30. preferably an electric motor, tolilyvmountetl on theplutform 13', and,

P the wnutil thereof carries :r pinion 32 in .n2e. h with :1 drive]: pinion 33 journulcd, as

showlr'ut 3-1- on the lnocket-li. A crank pin 1 3b. fastened to lihe'rlriven pinion 33, operates in the longitudinal slot of ii: depending I arm and time when the motor is in opera riozz, it will he evident that the Walking hezun will he moved in oprositc directions.

This will alternately rui'ze and lower the tliuphm 'nns 21 of the pump.- The current to Jz-ira. the motor is taken from any suitable smu'c. and in the. present omhodiment, a-

r-ortlil tl of=cousicleruhle length is employed that has at itsjrec end :1 plug 37 adapted to be inserted in on ordinary lump socket. This cord 36 is connected to a controlling switch 38 mounted on the platform 13 and from the switch, extends a cord 39 that is properly conncctc'clto the motor.

The means for separating the dust and 'ch'rtcollected, from the air is as follows:

A bottom wall 40, preferably slightly-conical in form, rests loosely upon thcupper arms of the brackets 15, and has an upstanding annular flungc 41' on its outer margin.- cylindrical outer casing 42 that is imperforute, and has a top 43 provided with a. handle 44, has an open bottom normally closed by said bottom wall 40, the lower margin of the cylindrical wall of the casing fitting within the upstanding flange ll and being packed by. a-suitahle gasket 45. The outercasing'has an annular bead adjacent its bottom with whichithe up er edge of the ring gasket 45 engages, -so t at in placing the cashig pn th bottom nail 40, the

ga slret can be engaged within the annular flange 41 without the-gasket slipping upward! on the casing. Within the. outer easing and disposed 'eecentrltzally thereto.

an inner cylindrical casing 46,"\\'l1i :h is mounted n thebottom, and has portions of its SldLh-[ltl' top walls perforated, as shown at 47. This inner eaamg is'spaced on all ili'ltliflfim the outer casing. and is preferably-ro'rere lby a wall 48 of fabric. the

gsaiue bring ubs-ta ethal y .in the form oi a bag that fits nugly over the outer face and top of the inner easing, and lS delar-hably held in place l ly-a renewable metal band 49 engaging .i'tsloner margin and surroundingthe basin The bottom has an opening-'50 commnni aliug with the interiorof th inner oasiuga ai l opening being aormally closed by a dvtaehahlo shrew cap :31,

A nair ronrluit 2- lm-atod overtbe motor 30, has aunpslaml n'q inlet end 53' that reeeires a depending nipple 54' carried by the bottom 40 -tl1-;-. ui}'iple being detachable from the conduit. and being-packed by a suitable rubber or other gasket-55.. It will-be noted by reterei'ure to-Figs. aud- 4 that. the eonduit .52 is thus in rommunieatio'n' with tho nipple 54, which is lora'ted atthe point where'the outer and inner easing-:4 are mostwidely separated. The conduit 52 is divided into branches 56, which lead to the bottoms of. the pump bodies '17. and operat' ingiover the dischargdends of said branches, are inwardly opening valves 57 that are 10- oated in the chambers of said bodies. These -valvos are. preferably provided with pack ing disks. and are hinged as shown at 59,

'- suitable. springs 60 bearing againstthe same to urge them to thmrclosed positions. The

pump bodies are' also provided with discharge orifiees ill. mntrolled by outwardly openin z 'alres 6E! hinged as illustrated at 6 and normally FElIlllgS 6%. p i

"or the purposeof directing the dust and bold. in closed position by dirt. into. the separating means. a flexible mnduit' of -some length 'is employed,- whirl! is connected to a downwardly extending spout 66 projecting from the bottom 40,

and preferably strengthened by a brave 67. This spout 6Q in fact the lower end of any upstanding pipe 65 arranged within the in nor easing 46 and extending to a point withfee in a hort di lanr'e of the top of the same. as

illustrated in Fig.3. To the free end of the take plilrt'. through the. conduit 52, and as a l'l 'allll a partial vacuum will at all times be uu'iiutainml in the. outer casing 42, which as already eirpluiuml. is imperforate. Consequently the only way in which air can enter the outer caning to relieve the vacuum is through a dust-rolleeting nozzle and pipes (v3 and '36. while thisair must pass not only through the rmrlorateinner casing 46, but through the fabric strainer wall surrounding the same. The dust and dirt, however, 'or other material thusdrawn into said inuer casing anuol pass through the some, and will therefore be deposited in said inner (Jilnlllfl' from whunre it: can be removed by detaching the closure 51.

There are many-advantages for this structure. In the first place, it. occupies but very little space, and can be moved about by any one. makin; it. peculiarly useful as a household implement, though it can be emplo ed on a m re extensive commercial scale. he

gained to any part and at the same time, it is strong and durable. In addition to H115,

ture. It will be noted that the outer casing run he readily'detu hed from the bottom the fabric wall or strip can be removed for the. purpose of washing or otherwise cleans lug ll'lO-Fillllfi' "The dirt rolleeted can be easily removed from the inner casing, and if desired, the entire separat ins: chamber can beremoved from the nwvhauisn'i. Furthermore in this slrurture. inasmuch as the pipe (33 extends nearly to the top of the. inner ca ing. there no danger of the structure llt"flll full. i

From the foregoing. it i'-' tliougbt that the construction. n 'wraiiou and many adiantages of the herein described invention 5 will be apparent to tho e skilled in the art,

without further description, and it will be l|l'ltll' t )fi(l that various elumgesin the size, hape. proportion. and m nor details of eonslruetion. may beresorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus fully described my invenbeing 'lrprv sed. a constant sue'tion will thus structure is all open, so tht access can be at any time by raising it, and consequently bevmning rlogrgal un il sairl easing is practhe separating means is. an important fen:

casing at a point to communicate with the cart by Letters lf'atent, is:

1. In a machine of the class described,

I, the combination of inner and outer casings the combination of inner and outer cylindrical casings arranged eccentrically, a conduit connected with the bottom of the outer widest part of the chamber between the casings, a COHClUlt exten'dmg upwardly through the inner casing at a pointeccentric' thereto and terminating at the top of said casing and nearest the narrowest part of the said chamber, the walls of said inner easlng forming a screen;

the combination of an inner casing formil'ig a screen and havinga head at its bottom end which extends beyondthe periphery of the casing and is provided with an opening, a closure for the opening, a fabric covering extending around the sides of the casing and over the top thereof, means for removably holding the covering in place, a removable casing held in fixed relation to the said inner casing by the marginal portion of the said head, said covering being dis posed between the two casings, and separate conduits both attached to the head and communicating respectively with the chamber inclosed by the inner casing andthe chamber formed between the two casings.

4. In a machine of the character set forth,

[the combination with an outer imperforate casing, of an inner perforate-casing located therein and disposed eccentrically thereto, a material directing conduit, and air exhausting means including a conduit, one conduit communicating with the interior of the inner casing at the point where the inner casing is nearest the outer casing, the other conduit communicating with the interior of the outer casing at the'point Where the inner casing is farthest removed therefrom.

5. Inja machine of the character set forth,

.the combination with a bottom having an upstanding annular flange, of an imperiorate outer cylindrical casingvdetachably engaged Withthe flange, an inner perforate casing mounted on the bottom and incloeed by the outer casing, said bottom having an opening communicating with the interior of the inner casing, a detachable closure for the opening, a material directing conduit extending through the bottom and having its discharge end located in the upper portion, what I claim as new, and desire to setion of the inner casing, said inner casing) being disposed eccentrically to the outer casmg, and air exhaust means including a conduit connected to the bottom and communieating with the interior of the outer casing at the point where said outer and inner cas ings are farthest removed from'each other.

6. In a machine of the character set forth,

the combination with a movable supporting frame, of an air pump mounted thereon, a separating chamber composed of eccentr1- detachably supported on the frame and havmg a detachable head, an air exhaust con duit connected to the pump and having a detachable engagement with the said head,

said chamber being detachable fromthe head while the conduit remains attached to the latter, and a material directing conduit communicating-With the chamber and extending through and carried by the head. 7. In a machine of the character set forth,

frame including brackets, ofan air pump i the combination with a movable supporting 3. In a machine'of. the class described,

mounted on the frame, a bottomtplate having an upstanding annular flan'ge, an imperforate outer cylindrical casing detachably engaged with the flange and fitting against the bottom plate, an inner perforate casing mounted on the bottom plate and inclosed by the outer casing; a materialdirecting conduit extending through the bottom plate and having its discharge end located in the upper portion of the inner casing, and an air exhaust conduit connected to the pump and having its inlet end detachably engaged with said bottom plate and opening between the outer casing and the inner perforate casing.

8. In a machine of the character set forth, the combination with a movable supporting frame, a bottom plate having an upstanding annular flange, of an imperforate outer cylindrical casing detachably engaged with the flange, an inner perforate casing mounted eccentrically to the outer casing, there being acleaning opening in the bot tom plate comrmnicating with the inner casing, a rem tle closure for the said opening, a marenal-directing conduit extending through the bottom plate and hav ing itsdischarge end located in the upper portion of the inner casing, and an 2111' exhaust'conduit having its inlet end detachably engaged with the bottom late and communicating with the interior 0 theouter casing between the outer casing and the. inner;

9; 1 1a machine of the class described;

the combination of a head having a circi'ilar flange, a casing secured tothe head byjthe said flange, means for forming an air-tight joint between the flange m dpoint of en gagement with the caslng, an inner casing 7s cally-a-rranged inner and outer casingsand' fixed 0n the said head and disposed eccen- In testimony, that Inlaim the foregning trically to the same, said head having an as my own, I have hereto afiixed my signaemptyin'g opening, a closure for the said llr m he presence o W it sses.

opening; a pipe leading through the head ERNEST L. B. ZIMMER.

and into the inner casing, and a conduit Witnesses: communicating With the Outer casing and C S. WENN, attached to the said. head. E. B. Qegmndiy, 

